same here, most angles are ok. it's really wierd though... you could be sitting at an angle and the water will be perfectly white. Move the mouse a little up and then back to the same angle and it's fine. i know what your saying (it's probably not the same angle) but it is. To support this there is another thing i can mention, which is when i dont even touch the mouse & keyboard in a water scene, after a few seconds the surface will go white. it's not just white, but a glaring white. if i turn off the "Glares" (i think) option it goes away.
BTW : when i said surface, i meant just the surface. if you go under the water the surface will do the same thing, bu the rest wont.